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    • 62. 发明授权
    • Method of neutralizing a catalyzed aldehyde condensation resin foam
    • 中和催化醛缩合树脂泡沫的方法
    • US3855161A
    • 1974-12-17
    • US36980973
    • 1973-06-14
    • FILFAST CORP
    • BAUER W
    • C08J9/36C08G53/08
    • C08J9/36C08J2361/02C08J2361/24Y10T428/8305
    • An improved method of treating a self-supporting mass of an acid catalyzed aldehyde condensation resin foam shortly after formation to substantially neutralize the foam and remove unwanted by-products of the formation reaction from the foam mass. A liquid carrying a treating material is used to penetrate the foam mass, raise the pH of the foam mass and wash away reactants and by-products of the foaming reaction. The method of this invention is particularly advantageous for use in treating ureaformaldehyde foam resin masses for ultimate use in the floral field as flower bases where it is desirable to wash cell walls of the mass to remove deposits of substances which form during manufacture and which are harmful to fresh cut flowers.
    • 一种在形成后短时间内处理酸催化的醛缩合树脂泡沫的自支撑物质以改进的方法,以基本上中和泡沫并从泡沫体中去除不希望的形成反应副产物。 使用携带处理材料的液体来渗透泡沫体,提高泡沫体的pH值并洗去发泡反应的反应物和副产物。 本发明的方法特别有利于用于处理在花田中最终使用的脲甲醛泡沫树脂块,作为花碱,其中需要洗涤物料的细胞壁以除去在制造过程中形成的物质的沉积物,并且是有害的 到鲜切花。